Traction-wheel.



R. E. HAMILTON. Y TRACTION WHEEL.

APPLICATION FILED DEC. 1. 914.

1,139,968. Patented May 18,1915,

WITNESSES: llVl/E/VTOR By I d! 4 ATTOR E75 unrrn RUSH n. HAMILTON, or GEYSERVILLE, onmronnm.

TRACTION-WHEEL.

Specification of Letters Patent.

Patented May is, rare.

Application filed December 11, 1914. Serial n0. 876,619.

To all whom it may concern:

Be it known that I, RUSH E. HAMILTON, a citizen of the United States, residing at Geyser-ville, in the county of Sonoma and State of California, have invented certain new and useful Improvements in Traction- Wheels, of which the following is a specification.

The present invention relates to improve ments in traction wheels adapted for use in vehicles designed for pulling plows or other agricultural machinery over soft ground.

The invention has for its principal objects to provide a pronged structure capable of attachment to the folly of a wheel, and which will extend through the soft or loose top soil and engage the hard pan or subsoil and provide suflicient traction for the wheel;

I one designed for loosening the soil as the prongs thereof are caused to leave the soil, owing t the rotation of the wheel, and to provide a structure which will cause the loosened soil to be thrown in a certain'direction, thereby forming a furrow in the soil over which the wheel has traveled.

\Vith the above mentioned and other objects in view, the invention consists in the novel construction and combination of parts hereinafter described, illustrated in the accoinpanying drawings and pointed out in the claims hereto appended; it being understood that various changes in the form, proportion, size and minor details of construction within the scope of the claims may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

To more fully comprehend the invention, reference is directed to the accompanying drawings, wherein Figure 1 is a view in vertical section with an embodiment of my invention applied thereto. Fig. 2 is a'view in side elevation of a wheel disclosing an einbodiment of my invention. Fig. 3 is a sectional view taken on line 33 of Fig.3, disclosing'the angle of disposition of the blades. Fig. 4 is a top plan view of one of the blades removed from the wheel. Fig. 5 is a View in elevation of a pair of blades. Fig; 6 is a view in side eleings, wherein like characters of reference designate corresponding parts throughout" the several views-1 is a shaft on which is mounted the hub 2-,of a wheel having spokes 3 and a felly .4. The felly is formed transversely of its outer surface with the depressions or seats 5 separated from each other by the raised portions'6.

"Seated in each of the depressions or seats 5 and extending transversely of the felly and overhanging the edges thereof are the base portions 7 of the traction members, and

the same are detachably secured in position on the felly by suitable bolts 8 which extend through openings 9 in the base portion 7 and other suitable openings 10 in the folly.

Formed integral with the ends of the base portion 7 and extending at right angles to the face thereof are the soilengaging blades or prongs 8 which are beveled at their lower ends, as at 9, and said blades or prongs are twisted adjacent to their juncture with the base '7 so that the faces of'the mtiin portion of the blades lie at an angle of 45 degrees to a line extendingthrough the longitudinal center of the base, and also be atan angle of 90 degrees to each other.

By forming the faces of the blades at an angle of approximately 45 degrees .to the line of travel of the wheel, the lower ends of the blades will obtain a better hold on the hard pan A, as in Fig. 1, and the blades on bcing raised from the soil, caused by the rotation of the wheel in the direetion of the arrow-Fig. 2, will cause. the soil to be thrown upwardly and thoroughly loosened to be further acted on by the implement following. The blades are preferably of a length suiiicient to extend through the soft top soil and penetrate the hard pan or subsoil, the hardness of the hard pan preventing the deep penetratioii thereof by the prongs or blades and the length of the prongs or blades maintaining the Wheel rim in spaced relation to the top soil, thereby preventing the packing of the same by the wheel, as shown in. Fig. 1. If necessary, when the wheel is traveling from place to place over hard roads or ground, the blades may be readily removed by removing the bolts 8.

Having thus described my invention, I claim 2- ,1"

1. In combination, a wheel, a plurality of tractors detachably secured thereto and each comprising a' base member extending trans, versely of the wheel for the full Width theree1 and formed at each end with en integral.

prong, said prongs extending therefrom st substantially right angles to the face or the ei'iphery of the Wheel and the faces thereof isposed at an angle to each other.

2'. lnhcombinatimi with e Wheel formeei. with transverse depressions extending the full width thereof, etractor detachably secuiecl in each of said depressions and each comprising a base member exh widling transversely of the Wheel rim and projecting beyond the side edges thereof, a substantially fist prong formed integral with each end of said base member and extending therefrom outwardly" at right angles to the periphery of the wheel, the said prengs at the joint With said base being twisted to dispose she messes faces thereof at an angie he the path of travel of the Wheel 3. A tractor attachment for securing to 

